| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Kappatos, Vassilis
Centre for Research and Technology Hellas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2017An ultrasonic guided wave approach for the inspection of overhead transmission line cablescitations
- 2017An investigation of shape memory alloys as actuating elements in aerospace morphing applicationscitations
- 2017Theoretical assessment of different ultrasonic configurations for defects detection in composite componentscitations
- 2016An experimental investigation of Electromagnetic Acoustic Transducers applied to high temperature plates for potential use in solar thermal industry
- 2016Inspection and Structural Health Monitoring techniques for Concentrated Solar Power plantscitations
- 2015Developing a Novel Ice Protection System for Wind Turbine Blades Using Vibrations of Both Short and Long Wavelengthscitations
- 2014Development of an ultrasonic NDT system for automated in-situ inspection of wind turbine blades
- 2014Airfoil morphing based on SMA actuation technologycitations
- 2014Enable the powder metallurgy process to expand to new markets with more reliable parts and lower manufacturing costs through the inspection of green parts
- 2014Development of an automated digital radiography system for the non-destructive inspection of green powder metallurgy parts
- 2013PM parts fast in-line x-ray digital radiography
- 2013Tensile mechanical properties prediction of reinforcing B500C steel bars in coastal structures
- 2012Structural health monitoring of ship and other offshore structures using acoustic emission testing
- 2012Preliminary NDT investigation of sintered Powder Metallurgy parts by high-resolution TDI based X-ray digital radiography
- 2012Development of a digital radiographic inspection technique for production friendly quality assessment of powder metallurgy parts
- 2010Assessment of the effect of existing corrosion on the tensile behaviour of magnesium alloy AZ31 using neural networkscitations
Places of action
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document
Developing a Novel Ice Protection System for Wind Turbine Blades Using Vibrations of Both Short and Long Wavelengths
Abstract
<p>Icing conditions in cold regions of the world may cause problems for wind turbine operations, since accreted ice can reduce the efficiency of power generation and create concerns regarding ice-shedding. This paper covers modelling studies and some experimental development for an ongoing ice protection system that provides both deicing and anti-icing actions for wind turbine blades. The modelling process contained two main sections. The first part involved simulation of vibrations with very short wavelength or ultrasonic guided waves (UGW) on the blade to determine optimal excitation frequency and transducer configuration. This excitation creates horizontal shear stress at the interface between ice and blade and focuses energy at the leading edge for de-bonding ice layers. The second modelling approach simulated the effects of vibrations with very long wavelength along with estimation of fatigue life due to harmonic forces to characterise the best parameters for shaker (s) mounted on blades. In parallel with this study, an empirical array of novel resonating shear transducers has been developed using a Design of Experiments (DoE) approach to demonstrate the practicability of inducing shear horizontal waves at the leading edge of wind turbine blades. This experimental verification also makes it possible to investigate the many parameters influencing ice-removal. In addition, piezo-electric and macro-fibre composite actuators have been investigated in place of conventional electro-magnetic shakers, in order to save weight and simplify integration of the deicing system components. The ongoing research is intended to provide an active solution for icing prevention and deicing, enabling safe and reliable operation of wind turbines in adverse weather conditions.</p>